Portable small hand tool vise



March 30, 1948.

K. BAGGE PORTABLE SMALL HAND 'TOOL VISE' Filed Nov. 12, 1946 I INVENTORATTORNEY Patented Mar. 30, 1948 2,438,797 mem s MsL oo was aj S inland,Calif.

lippli cationihloyeniber 12, 194,5, s ri l no. 199.254

2 Claims. (01. 279-51) hi inv ion per ins to a Sma wi h nd or is capableof b in use .i ffi m li screw drivers, punches, scribes, fil'esfbits,drills, and other relatively smalltools', inan inter changeable manner.The 'toolof the present invention is particularly welladapted forus'efby jewelers, instrument makers, camera repair men, and whereversmall tools are employed. in maring, adjusting, or repairing relativelydelicate equipment.

Heretofore, jewelers, repair men, etc. have either employed small handtools provided with individual handles or it was necessary to employholder which required tightening and release of the small tool withinthe handle by a manually actuatable means such as a tightening collar orthe like. The present invention distinguishes from these prior devicesin that it provides a simple, efiicient vise capable of readilyreceiving and holding small tools without requiring manual tightening.As a result, a single, portable vise and handle may be readily used witha l rge number of tools varying in size or character, thereby obviatingthe necessity of having each of the tools provided with its own handle.

An object of the present invention, therefore, is to disclose andprovide a small, portable, positively actuated hand tool vise.

A further object of the invention is to disclose and provide a portable,small hand tool vise in which the of the tool is automatically andpositively grasped by manipulating the handle with the fingers of butone hand, thereby permitting the operator to hold or adjust his workwith one hand while the other hand is free to selectively grasp, holdand manipulate any one of a large variety of tools.

A still further object of the invention is to disclose and provide asimple, efficient and economical construction specifically designed forthe attainment of the objects hereinbefore recited.

These and other objects will become readily apparent to those skilled inthe art from the following description of an exemplary form of deviceillustrated in the appended drawings.

In such drawing:

Fig. 1 is a side elevation of a hand tool vise in its normal position.

Fig. 2 is an end view thereof.

Fig. 3 is a side elevation, partly in section, illustrating the positionof the parts immediately prior to the insertion of a small toolthereinto.

Fig. 4 is an end view thereof.

{is shown in these drawings, the device cornpri fs 'es"a"liollow cap itinternally threaded as at ii and provided with a" tubular portion i2 ofsmaller diameter than the main 'lcody' portion of tlfe"cap.Thend*of thecapmay be concave for the' purpo'se of receiving' 'the'thumb or theuser," wherebypressure may be applied to the toolh'eld'by'the'device.Axially "p'os it'iondwithin the tool is a split collet, generalyindicated at it. This collet preferably has an externally threaded endportion iii in engagement with the internal threads ll of the cap and isprovided with a substantially cylindrical body ll terminating at itslower end in a conical head. The head has conical, outwardly flaringsurfaces 58 and may, if desired, be provided with an end portion havingthe oppositely inclined surfaces l9. The externally threaded end it, aswell as the main body portion ll, of the collet is preferably hollow,the internal bore being indicated at 20. The conical end of the collet,as well as the major portion of its tubular body, is split by means ofslots, generally indicated at 2! and 22, at right angles to each other,thereby providing for resiliently held collet head portions. It is to beunderstood that instead of the two transversely arranged slots 2| and22, three or more angularly related slots may be used, therebyincreasing the number of collet arms cooperating to hold the shank ofany tool inserted axially into the collet l5.

Slidably mounted upon the tubular extension l2 of the cap and encirclingthe body I! of the collet is a sleeve 26. This sleeve is axially boredand counterbored at 25 so as to form a shoulder 26 capable of engagingthe end of the tubular section I2 of the cap ll]. Since the tubularsection I 2 is of reduced diameter, the upper end of the sleeve 24 isalso capable of abutting the shoulder 21.

Between the shoulder 23 and a shoulder 28 formed in the lower end of thetubular section [2 of the cap is a spring 29 which normally presses thelower end of the sleeve 24 against the inclined surface l8 of the collethead I5. The lower end of the sleeve 24 is provided with an inwardlytapering surface 39, the angle of such surface being preferably slightlyless with respect to the axis than the angle of the conical surface I8.

Normally, therefore, as shown in Fig. 1, the sleeve 24 is urgeddownwardly against the surface IB of the collet so as to bring thevarious arms of the collet together. When it is desired to introduce andhold a small hand tool, the

sleeve 24 is moved upwardly against the cap so as to compress spring 29,thereby permitting the collet to open, whereupon a tool may be insertedinto the axial opening between the arms. After being inserted in thismanner, the sleeve 24 is released, causing the arms of the collet tofirmly grasp the tool. The inward, central movement of the arms of thecollet is attained by the cooperating action of the internal taper 30against the external taper [8.

It will be evident, therefore, that the device of the present inventionmay be readily and easily manufactured and has tremendous utility andfield of usefulness wherever hand tools need be employed; p 7

All changes and modifications coming within the scope of the appendedclaims are embraced thereby.

V Iclaim:

1. A portable, small, hand tool vise and han-' dle comprising: a splitcollet having a cylindrical body portion, a substantially solid,externally threaded shank end and an enlarged conical head,

said collet being split through the conical head and body portion; ahollow, internally threaded cap connected to the threaded shank end ofthe-collet, said cap including a tubular portion surrounding the colleta tubular release sleeve carried by the tubular portion of the cap andextending around the collet for cooperation with the conical headthereof; and spring means between the cap and sleeve for normallyengaging the sleeve with the conical head to hold the collet in closed,toolgrasping position.

2. A small hand tool vise comprising: a split collet having :asubstantially solid, externally threaded shank end, a hollow bodyportion and an enlarged conical head, said head and body portion beinglongitudinally split to form resilient'collet arms; a hollow, internallythreaded cap connected to the threaded shank end of the collet, said capincluding a tubular portion of and spaced therefrom;

